Just collect like terms, and watch the negative signs and positive signs
Answer:
Step-by-step explanation:
1). (B). Replace one equation with the sum/difference of both equation.
System B is
- 4x - 6y = 9 ........ <em>(1B)</em>
-4x + 3x = - x
- 6y + y = - 5y
9 - 4 = 5
- x - 5y = 5 ........ <em>(2B)</em>
2). Yes, both system are equivalent.
Answer:
1/2, 6/10, 2/3, 3/4
Step-by-step explanation:
we can convert each fraction to a decimal to compare:
2/3 = 0.666666 repeating
1/2 = 0.50
3/4 = 0.75
6/10 = 0.60
least to greatest:
1/2, 6/10, 2/3, 3/4
9514 1404 393
Answer:
Step-by-step explanation:
The solution steps are ...
3(y -2) = 18 . . . . . . given
3y -<u>6</u> = 18 . . . . . . . eliminate parentheses using the distributive property
3y = <u>24</u> . . . . . . . . . add 6 to both sides
y = <u>8</u> . . . . . . . . . . . divide both sides by 3
The value of y is 8.